Encyclopedia of Sustainability Science and Technology

Living Edition
| Editors: Robert A. Meyers

Fuel Cells (SOFC): Alternative Approaches (Electroytes, Electrodes, Fuels)

  • K. SasakiEmail author
  • Y. Nojiri
  • Y. Shiratori
  • S. Taniguchi
Living reference work entry
DOI: https://doi.org/10.1007/978-1-4939-2493-6_138-3

Glossary

Anode

Electrode for electrochemical oxidation reactions. In solid oxide fuel cells, hydrogen-containing fuels are oxidized by oxygen ions transported through an electrolyte to form water vapor or CO2 as the reaction products at this electrode. SOFC anodes may also act as fuel reforming catalysts when hydrocarbon-based fuels are supplied to the anodes.

Cathode

Electrode for electrochemical reduction reactions. In solid oxide fuel cells, oxygen in ambient air is reduced to oxygen ions at this electrode.

Electrolyte

Ionic conductor with negligible electronic conductivity, used as a membrane between an oxidation atmosphere and a reduction atmosphere. The essential material to construct electrochemical devices including fuel cells.

Fuel flexibility

While low-temperature fuel cells (such as polymer electrolyte membrane fuel cells) typically use pure hydrogen gas (or hydrogen gas mixed with CO2) as the fuel, high-temperature fuel cells can directly use various kinds of fuels, such...

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Notes

Acknowledgments

Financial support by the NEDO project “Development of System and Elemental Technology on Solid Oxide Fuel Cells (SOFC)” is gratefully acknowledged. We thank Prof. A. Hayashi and Associate Profs. S. Lyth and Dr. S. Bishop in Kyushu University for carefully reading the manuscript and Ms. A. Zaitsu in Kyushu University for her editorial work.

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Copyright information

© Springer Science+Business Media LLC 2017

Authors and Affiliations

  • K. Sasaki
    • 1
    • 2
    • 3
    Email author
  • Y. Nojiri
    • 1
  • Y. Shiratori
    • 1
    • 3
  • S. Taniguchi
    • 1
  1. 1.International Research Center for Hydrogen EnergyKyushu UniversityFukuokaJapan
  2. 2.International Institute for Carbon-Neutral Energy Research (WPI)Kyushu UniversityFukuokaJapan
  3. 3.Faculty of EngineeringKyushu UniversityFukuokaJapan